rsProgramFragment.h revision cd50653f99c960e1a47c2c30e53b369b8805344a 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_RS_PROGRAM_FRAGMENT_H
18#define ANDROID_RS_PROGRAM_FRAGMENT_H
19
20#include "rsProgram.h"
21
22// ---------------------------------------------------------------------------
23namespace android {
24namespace renderscript {
25
26class ProgramFragmentState;
27
28class ProgramFragment : public Program
29{
30public:
31    const static uint32_t MAX_TEXTURE = 2;
32
33
34
35    ProgramFragment(Context *, Element *in, Element *out, bool pointSpriteEnable);
36    ProgramFragment(Context *rsc, const char * shaderText,
37                             uint32_t shaderLength, const uint32_t * params,
38                             uint32_t paramLength);
39    virtual ~ProgramFragment();
40
41    virtual void setupGL(const Context *, ProgramFragmentState *);
42    virtual void setupGL2(const Context *, ProgramFragmentState *, ShaderCache *sc);
43
44
45    void bindTexture(uint32_t slot, Allocation *);
46    void bindSampler(uint32_t slot, Sampler *);
47    void setType(uint32_t slot, const Element *, uint32_t dim);
48
49    void setEnvMode(uint32_t slot, RsTexEnvMode);
50    void setTexEnable(uint32_t slot, bool);
51
52    virtual void createShader();
53    virtual void loadShader(Context *rsc);
54    virtual void init(Context *rsc);
55
56
57protected:
58    // The difference between Textures and Constants is how they are accessed
59    // Texture lookups go though a sampler which in effect converts normalized
60    // coordinates into type specific.  Multiple samples may also be taken
61    // and filtered.
62    //
63    // Constants are strictly accessed by programetic loads.
64    ObjectBaseRef<Allocation> mTextures[MAX_TEXTURE];
65    ObjectBaseRef<Sampler> mSamplers[MAX_TEXTURE];
66    ObjectBaseRef<const Element> mTextureFormats[MAX_TEXTURE];
67    uint32_t mTextureDimensions[MAX_TEXTURE];
68
69
70    // Hacks to create a program for now
71    RsTexEnvMode mEnvModes[MAX_TEXTURE];
72    uint32_t mTextureEnableMask;
73    bool mPointSpriteEnable;
74};
75
76class ProgramFragmentState
77{
78public:
79    ProgramFragmentState();
80    ~ProgramFragmentState();
81
82    ProgramFragment *mPF;
83    void init(Context *rsc, int32_t w, int32_t h);
84    void deinit(Context *rsc);
85
86    ObjectBaseRef<Type> mTextureTypes[ProgramFragment::MAX_TEXTURE];
87    ObjectBaseRef<ProgramFragment> mDefault;
88    Vector<ProgramFragment *> mPrograms;
89
90    ObjectBaseRef<ProgramFragment> mLast;
91};
92
93
94}
95}
96#endif
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